Almost got that Stihl 25 CC converted thanks to all you guys and parts from Kenneth. One problem still remains, though. The original plug was a NKG BPM 7A. My plan was to replace it w/ the same plug in a resistor version. However, I cannot econically get that plug. Can I go with the 6R version? I know it's a bit hotter, or would I be better off with a 8R?

Also, Do I need a slielded plug wire? If so, is that something that I can make? Where can I get one if needed?

Thanks!

here are a couple pics of the engine. I need to get longer bolts for the mufler. I have not made it to my LHS to get a prop cause my LHS aint very local. about 90 miles away!

Engine looks good.

No you don't need to shield the wire.

The one step colder should be fine.

Enjoy,

Jim

looks good looks good, Ken's mufflers are awesome IMO. We use Bosch in all our Stihl equipment wsr6f fits every two stroke they make. If your use Champion use cjr6y